[cvsnt] Latest Updates

[Tony Hoyle]

cvsnt 2.0.18

Stabilisation/bug fixes.  I considered the breakage of log to be
serious enough to push a release out today... Hopefully that's the
major stuff out of the way and it's all tidying up now (I'm aiming to be
fully tested by Friday so there's a nice version out there for the new
version).

* Fix RCS wrappers so they work with new lockserver code
* Fix cvs log which for some reason has its own personal RCS parser (!)
* Stop 3-way diff generating a erroneous conflicts
* More local mode unicode fixes

Tony